/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author PhucAn
 */
public class RememberUserName extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            String action = request.getParameter("action")== null?"":"login";
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet RememberCookie</title>");            
            out.println("</head>");
            out.println("<body>");
            String user = "";
            String pass = "";
            if(request.getParameter("txtUser") !=null && request.getParameter("txtUser") !="")
            {
                Cookie ck = new Cookie("user", request.getParameter("txtUser"));
                response.addCookie(ck);
                out.println("cookie saved");
                
            }
          if(request.getCookies() != null)
          {
               Cookie[] cookie = request.getCookies();
               for (Cookie cookie1 : cookie) {
                   if (cookie1.getName().equals("user")) {
                       user = cookie1.getValue();
                       break;
                   }
              }
          }
            out.println("<form action='RememberCookie' method='GET'>");
            out.println("User:");
            out.println("<input type='text' name='txtUser' value='"+user+"' />");
            out.println("Password:");
            out.println("<input type=text value='"+pass+"' />");
            //out.println("<a href='RememberCookie?action=login'>Login <a/>");
            out.println("<input type='submit' value='Login' />"); 
            out.println("</form>");
            out.println("</body>");
            out.println("</html>");
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
